Model issue when throwing a Frozen Grenade

[TKELHCI]

Explosive grenade model is present when thrown by Frozen Grenade

[WhenTanksFly]

https://steamcommunity.com/app/563560/discussions/0/601902470979954632/

There's currently a bug causing non-vindicator grenades to show the vindicator grenade particle effects in addition to their own.

though it does look more like a normal grenade rather than a fire grenade

[jhh8]

fixed in #902